Chapter 10

Suctioning the oral cavity of an adult should be accomplished within:

15 seconds

When testing a mechanical suctioning unit, you should turn on the device, clamp the tubing, and ensure that it generates a vacuum pressure of more than:

300 mm Hg

You are performing mouth-to-mask ventilations with oxygen connected and set at a flow rate of 15 L/min. What percentage of oxygen is your patient receiving?

55%

Which of the following patients should you place in the recovery position?

A 31 year old semiconscious male with low blood sugar and adequate breathing

In which of the following patients would the head tilt-chin lift maneuver be the MOST appropriate method of opening the airway?

A 37 year old female who is found unconscious in her bed

Which of the following patients is breathing adequately?

A conscious male with respirations of 19 bpm and pink skin

While assisting with respirations, you note gastric distention, you should:

ALL of these answers are correct

Which structure is not found in the upper airway?

Bronchus

A man was found unresponsive in his bed at home. There is no evidence of injury and the patient's medical history is not known. The patient's face is cyanotic, yet the pulse oximeter reads 98%. Which of the following would MOST likely explain this?

Carbon monoxide poisoning

Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called:

Cheyne-Stokes respirations

All of the following are signs of hypoxia, except:

Dehydration

How does CPAP improve oxygenation and ventilation in patients with certain respiratory problems?

It forces the alveoli open and pushes oxygen across the alveolar membrane

You come upon an unresponsive patient who is not injured and is breathing on her own with a normal rate and an adequate tidal volume. What would be the advantage of placing her in the recovery position?

It helps to maintain a clear airway

You respond to a construction site and find a worker lying supine in the dirt. He has been hit by a heavy construction vehicle and flew more than 15 feet (4.6 m) before landing in his current position. There is discoloration and distention of his abdomen about the right upper quadrant. He is unconscious and his respirations are 10 breaths/min and shallow, with noisy gurgling sounds. What method will you use to keep his airway open?

Oropharyngeal airway

Which of the follow statements regarding normal gas exchange in the lungs is correct?

Oxygen and carbon dioxide diffuse across the alveolar walls and capillaries

Which of the following statements regarding oxygen is correct?

Oxygen supports the combustion process and may cause a fire

Which of the following statements regarding breathing adequacy is correct?

Patients breathing shallowly may require assisted ventilation despite a normal respiratory rate

During your assessment of a patient with respiratory distress, you hear wheezing when listening to breath sounds. This indicates:

a lower airway obstruction

Which of the following is the most reliable indicator of adequately performed bag-valve mask ventilation in an apneic adult with a pulse?

adequate rise of the chest when squeezing the bag

What occurs when a patient is breathing very rapidly and shallowly?

air moves primarily in the anatomic dead space and does not participate in pulmonary gas exchange

The nasopharyngeal airway is most beneficial because it

can maintain a patient airway in a semiconscious patient with a gag reflex

A patient who is suspected of being hypoxic and is breathing adequately should be given supplemental oxygen with a:

nonrebreathing mask

A 19-year-old female is found unconscious by her roommate. Your primary assessment reveals that her breathing is inadequate. As you insert an oropharyngeal airway, she begins to gag violently. You should:

remove the airway and be prepares to suctions her oropharynx

You are ventilating a patient with a stoma; however, air is escaping from the mouth and nose. To prevent this, you should:

seal the mouth and nose

The proper technique for sizing an oropharyngeal airway before insertion is to measure the deice from:

the corner of the mouth to the earlobe

The physical act of moving air into and out of the lungs is called:

ventilation